Wind turbine pitch bearing, and use hereof

Details Wind turbine pitch bearing, and use hereof Wind turbine pitch bearing, and use hereof

2005-07-05

2011-11-01

Look, Edward (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

C416S20400A, C416S239000

Reexamination Certificate

active

08047792

ABSTRACT:
The invention relates to a wind turbine including at least two pitch controlled wind turbine blades. Each blade has pitch bearings including two or more bearing rings, and pitch controlling means for pitching the blades by means of the bearings. The blades are mounted on a hub via the pitch bearings and the pitch bearings include separate flexibility enhancing means for controlling loads in the bearings.

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International Search Report; PCT/GB2005/002612; Mar. 3, 2006.
Author Unknown; Notification of Reason for Refusal issued in corresponding Japanese Application No. 2008-518943; Mar. 2, 2011; 7 pages; Japanese Patent Office.
Author Unknown; Extracted English Translation of and published Japanese Patent Application No. 2004-045449; publication date Dec. 8, 2005; 16 pages.

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